Setting device for resawing machines



4. SURENSON.

f smma osvxce ma nEsAwm MACHINES. C APPLICATION FILED AUG-9| 1920. 1,434,969. Patented Nov. 7, 1922.

MV/Mfa Patented Nov. 7, i922.

` afi-nate Pattini? JOHN SORENSON, 0F RHIll'EL-ANDER, VISCNSN.

j DEVICE FOR RESAWING MCACHENES.

v Application ilet August 9,

Toalll to from t may concer/af L' Be it known that l, dorm SonENsoN, a.r citizen ot 'the `United States, residing at lhinelander, countyot Oneida, and State or llisconsin, have invented newand useiiul Tmprovementsfin Setting Devices tor lrlesawing Machines, of which the followingi is aspecihcation.

. .ll/ly invention relates to improvements in setting devices for resawing' machines.

The object otmy `invention isv to provide improved means for locking' the table adjustingrl lever `in its desired positions ot adjustment. More particularlystated, the ob'- jectv of this invention is` to provide the'table adjusting` lever with a plurality ot locking' devices and associated toothed or vnotched segments, and arranging` the locking devices'and segments in` such a manner as to not only avoid confusion in settingthe lever in the proper position, but also to facilitate the making of nice adjustments,y of the lever at points which lie between the adjustments which are permissible in the use ot a single locking' device and segment.

ln myimproved construction it is possible to lock the lever in one position of adjustment 'for cutting 4boards o'l a rfiven thickness from slabs of soft wood, and to subsequently utilize the same machine for cutting boards from hard wood slabs by simply substituting' saws, and slightly` readjnstinn the lever to allow 'for the differ-- ence in the widths of the kersfmade by which are employeditor sawing' hard` wood, distinguished from those which are employed for sawing soft wood. It is well known that saws for sawinfr soft wood .must have a wider set than those which are employed for cutting hard wood.A `Byproviding;` one set ,of locking devices Yfor holdingv the lever in aproper position for sawing hard wood boards of predetermined thickness, and another set of locking devices for holding; the leverin` a proper position for sawing' soft wood boards, it becomesI possible to not only secure minute variations in. adjustment, without diiiiculty, but it also becomes possible for inexperienced workmen to make the necessary changes in adjustment, without danger of error or confusion.

In the drawingszi Figure 1 is a fragmentary view in side elevation of those portions of a resawing machine essential to he illustrated for the purpose of disclosingmy invention, and its y mode of operation, my invention beine; embodied in the machine asy illustrated. A

Figure 2 is a `front elevation oi the parts illustrated in Figure 1. f

Figure 3 is a plan view, the saw being partially broken away above the table adjust'- ing lever. j i

Like parts are identiied by the same reference characters throughout the several views. j f 1 The table adjusting lever 1 is pivotally ulcrunied at 2 to a frame member. The ,general function of this lever is tok support and adjust a vertically movable table or slide 5, said table being raised or lowered l by a link 7 pivoted to the leverfl at 8.

4Theselparts may be of any ordinary construction. They are more fully shown and described in a companion application eX- ecuted by me bearing; even date herewith, and which shows and describes means for actuating the lever 1 from a suitable source of mechanicalpower through the vertically movable bar 8.

Butit may be assumed for the purpose of the invention herein disclosed, that the lever 1 may be swung in avertical plane upon its'pivotal fulcrum, either through mechanical nipulation. j f

It will be observed that the machine frame is provided with a pair of notched segments or arcuate bars 10 and 11, between which the long arm of the lever l extends.r

The outer end of this armvis preferably rei-,f4

duced and extended toA form a handle, or handle portion 12, whereby the lever may be manually y raised or lowered. A locking lslide 13 is"n`iounted in a suitable housing or `by a cross lever 6 connected with the lever power or through manual mabracket lei,y on one side 'of the handle porn tion 12 of the lever, and the inner end of this slide is adapted to engage in any one of the notches 15 formed in the outer margin of the arcuate bar or segment 10. `A

coiled spring 16 is interposed between a shoulder or projection y17 on the slide 18, and the outer wall of the casing 14. The spring-16 is a compression spring, and

, tends to automatically push the slide 13 into any notch with which it may be in registry, but the pin or slide mayk be retracted to withdraw it from the notch by means of the small hand lever -171 pivoted to the ,housing 14 at 18 t0 the Slide, 13 at 19.

The opposite side ofthe handle portion 'l2 is provided withl a similar housing or an extension of the housing 14, in which a spring actuated slideQQ` is mounted, this slide being retracted by means of' the small hand lever 32, connected and operating in the same maner as the lever 17. The slide 22, however, is adapted to engage in the notches 24er the arcuatebar l1.

The 'notches l5, inthe arcuate bar l() vmay be assumed to be .disposed with reference to the desired adjustments of the table .3 for sawing' boards of standardthiclrness Yfrom soft wood, and the notches Qt in the bar or segment Vl1 may correspondingly he lassumedto be disposed in accordance with the requirements ior sawing standard hard wood boards. Therefore, by retracting both of the hand levers 17 and 32, lever l may be raised or lowered and adjusted into substantially the desired position for sawing boards of .a given thickness, as indicated by suitable gage marks on the segments or bars lO and ll. "Thereupon, both levers 17"' and 32 are released, and if soft wood boards are to be sawed, the table adjusting lever l will then be moved until its locking slide 13 engages in the proper notch in segment bar l0. It. hard woodvboards `are to be sawed, the lever` l. will be manipulated until the Vlocking slide 22 engages the proper notch 24tin the other segment bar ll. lt will not even be necessaryr'or the operator to inspect the slides 13 and 22, for the reason that the levers laand 32 indicateby their relative positions'which oit the locking slides is in f locking position. T he levers 17%l and 32 are in suiciently close lproximity to each other to enable the operator to simultaneously grasp both of them with one hand, using the other hand to manipulate -the lever l, when manualoperation of that leveris required.` i f y lf the lever fl is operated byv mechanical power, the operatorwill still manipulate the two levers 17 `argl 32 with one hand, and use the other to control the power connections.

For thebenelit of,inexperiencedyvorkmen,

the levers or slide actuating members 17' and. 32 may be suitably marked to identit;Y or designate their purpose. For example, the lever 17 maybe marked with the letter S to indicate its use for locking the table adjusting lever in position `for soft wood operations. The other'lever may be marked with the letter ll-7, to indicate its use ifor .hard wood adjustments. Both may be held retracted by latch dogs 26.

lt will be understood that my invention has been illustrated and explained `as used in connection with a band saw 27, which runs in the form of an endless belt over the table and inthe path of the worlr, the latter being moved across the table at right angles to the line along which the saw travels.

l. The combination with justing lever of aresawing machine, or" a plurality oiivlocking devices for said lever, one of said locking devices being adapted to hold the lever-in. various positions for sawing boards of standard thicknesses 'troni soft wood, and another of said locking dcvices being adapted to hold the lever in various positions for sawing boards of stand- `ard thicknesses from hard wood.

2. The combination with a table adjusting' lever for a resawing machine, of a set of locking slides mounted upon said lever, a

the table adslide operating memberu associated with each slide, and a notched segmental member associated with each slide and adapted to receive said slide within the notches thereof to lock the lever in adjusted position.y the .notches within said` segmental members being spaced different distances apart` in the respective members corresponding to the diiierences existing' between saw Cuts for soint wood and for hard wood.

ln testimony whereof l aliiX my signature l JNO. J. REMO,y MARIAN Boo'rrL 

